For all the ranting I’ve done on copyright, I would now like to offer atonment. Project Gutenburg has a lot of public domain texts, but they aren’t all proofread. Distributed Proofreaders is a project to proofread the works. Sign up and proof a page.
The neat thing about this is that they were recently slashdotted and, as a result of all the traffic, completing 250,000 pages in a month looks feasible:
Can we do 250,000 pages this month? That is about 415 books which is equal to all the books done with [Project Gutenburg] from 1971-Jan 1996.